Finding the Fourth Proportional to 118,569.93, 163,631.75 and 68,285.13
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Solution
The fourth proportional to 118,569.93, 163,631.75 and 68,285.13 is: 94,236.50
Step by Step Solution
- Step 1: Write the proportion equation
118,569.93 : 163,631.75 = 68,285.13 : x - Step 2: Convert to fraction form
118,569.93/163,631.75 = 68,285.13/x - Step 3: Cross multiply
118,569.93x = 163,631.75 × 68,285.13 - Step 4: Simplify right side
118,569.93x = 11,173,615,320.88 - Step 5: Solve for x
x = 11,173,615,320.88/118,569.93 - Step 6: Final answer
x = 94,236.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.